Replaces the magazine floor plate converting the factory model 26, 27, and 33 magazines to ten round capacity and converts the factory model 26 magazine to twelve round capacity. Fits Model 39 magazine, but does not add capacity.
These units replace the magazine base plate and internal floor plate. They will add two rounds to the Glock M26, one round to the Glock M27 and M33 and no rounds to the Glock M39. These units will add 5/8" additional length for better control and comfort.